Renal cell carcinoma (RCC) accounts for only 3% of adult malignancies, and the lung is the most common site of metastasis of this tumor, which may be accompanied by pleural metastasis. However, solitary pleural involvement is very rare and its presentation with dyspnea as the first manifestation of RCC is extremely rare.We describe a 39-year-old male with episodes of dyspnea dating back 6...

Compressive strength represents a basic standard by which the quality of concrete is assessed. However, in view of the inherent shortcomings of the compressive strength test, current trend is towards performance oriented test using Non Destructive Methods, NDT. This is a report on a research carried out on the assessment of concrete strengths using computer tomography (CT) scan method. First, a...

X-ray computed tomography (CT) can reveal the internal details of objects in three dimensions non-destructively. In this Primer, we outline basic principles CT and describe ways which a scan be acquired using tubes synchrotron sources, including different possible contrast modes that exploited. We explain process computationally reconstructing three-dimensional (3D) images from 2D radiographs h...

Exploiting sparsity in the image gradient magnitude has proved to be an effective means for reducing the sampling rate in the projection view angle in computed tomography (CT). Most of the image reconstruction algorithms, developed for this purpose, solve a nonsmooth convex optimization problem involving the image total variation (TV). The TV seminorm is the `1 norm of the image gradient magnit...

conclusions a high index of suspicion is essential for early detection of ddr and dddr. patients with high impact injuries or surrounding organ damage should be followed with serial clinical examinations, follow-up radiologic assessments, and even re-exploration in situations highly suspicious for diaphragmatic injuries. introduction diaphragmatic rupture (dr) is an uncommon, potentially seriou...

Three cases of cortical blindness complicating eclampsia are described, with magnetic resonance imaging (MRI) and X-ray computed tomography (CT). The correspondence of MRI lesions (hyperintense on T2 weighted, and hypointense on T1 weighted sections) and low attenuation lesions on CT scan indicated ischaemia rather than haemorrhage as the pathological mechanism.

High cost and complexity of commercial X-ray computed tomography systems act as a barrier to the adoption of such technology by small and medium sized companies. The work presented here attempts to address these issues through the development of affordable solutions for both CT reconstruction and X-ray projection data set acquisition.